I've never seen a Jag Wagon. (jack-wagons yes)
In fact, I never even thought of a such a thing.
The car is at least seven years old and based on the Ford Mondeo. Most Jag fans hate the X-Type. They’re relatively cheap.
Most Jag wagons are Europe-only. The current XF ‘Sportbrake’ is pretty good looking, and is available there in a high performance version.
An X-type wagon was for sale near me last year. Certainly a good looking car, and probably the most reliable Jag ever made.